#include<bits/stdc++.h>
using namespace std;

int a[100005];
bool b[100005];

int main()
{
    freopen("duel.in","r",stdin);
    freopen("duel.out","w",stdout);
    int n,s = 0;
    cin >> n;
    for(int i = 1;i <= n;i++)
        cin >> a[i];
    sort(a + 1,a + n + 1);
    for(int i = 2;i <= n;i++)
        for(int j = 1;j <= i;j++)
            if(a[i] > a[j] && b[i] == 0 && b[j] == 0)
            {
                b[j] = 1;
                break;
            }
    for(int i = 1;i <= n;i++) if(b[i] == 0) s++;
    cout << s << endl;
    return 0;
}
